import json
from multiprocessing import Pool
import requests
import re
def get_one_page(url):
    headers = {
        'Referer': 'https: // maoyan.com / board / 4',
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36'
}
    response = requests.get(url, headers=headers)
    if response.status_code == 200:
        return response.text
    else:
        return None
def parse_one_page(html):
    pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?"name"><a'
                         +'.*?>(.*?)</a>.*?"star">(.*?)</p>.*?"releasetime">(.*?)</p>'
                         +'.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S
                         )
    items = re.findall(pattern,html)
    # print(items)
    for item in items:
        yield {
            'index': item[0],
            'image': item[1],
            'title': item[2],
            'actor': item[3],
            'time': item[4],
            'score':item[5]
        }
def write_to_file(countent):
    with open('result.txt', 'a', encoding='utf-8') as f:
        f.write(json.dumps(countent, ensure_ascii=False)+'\n')
        f.close()
def main(offset):
    url = 'https://maoyan.com/board/4?offset='+str(offset)
    html = get_one_page(url)
    for item in  parse_one_page(html):
        print(item)
        write_to_file(item)
if __name__ == '__main__':
    # for i in range(10):
    #     main(i*10)
    pool = Pool()
    pool.map(main, [i*10 for i in range(10)])
